Mapps, 59, is suspected of shooting Reginald and Kim Tuttle and their daughter, 33-year-old Dawn Roderick, and then lighting their Rye home on fire to cover up the crime.

“The evidence and with the new charges will make him one of the most sought after fugitives in the country,” Sheriff Kirk Taylor told the media Thursday at a press conference.

“The publicity of this case has brought sightings across the country, yet not one of those sightings has led to the capture of Mapps, as of yet.”

Mapps was last sighted in La Junta, where he cashed a check stolen from the victims. Taylor said they’ve had no luck locating his blue van — 2004 Chrysler Town and Country with disabled veteran Texas license plate 7-FSNK.

“In all likelihood, Mapps, who continues to be on the run, will resort to desperate measures including committing new crimes to generate resources he needs to stay on the run,” U.S. Marshal John Kammerzell said. “He is considered armed and dangerous and unpredictable with high propensity for violence.”

District Attorney Jeff Chostner said the case has been sealed and investigators could not talk about details and evidence at this time.

“At this point in the investigation, it is not appropriate to release all the facts and circumstances of what’s in those warrants because we don’t want to do anything to undermine the case,” Chostner said. “We want to have a perfected case so when Mr. Mapps is apprehended — and he will be apprehended — that we have the kind of case we can go forward on.”

A truck driver who worked for the Tuttle’s trucking company, Taylor said Mapps is versed in traveling.

“He was an over-the-road truck driver. He’s very familiar with some of the less traveled roads across the country. He’s very familiar with traveling in particular and we did take that into consideration.”

The Marshal service is offering a $5,000 reward for information that leads to the arrest of Mapps.

To submit tips, call 877-926-8332, or the Pueblo County Sheriff’s Office at 719-583-6400.

“All I can tell you is every single tip we’re receiving is being followed up by us or our partners at the Marshals,” Taylor said. “They’ve thinned out a bit. We’re hoping the public will stay vigilant and stay engaged in this case and that we can have the assistance of the public across the country, not just in Colorado, to help bring this man to justice.”